Not much of an update, but I did prime the nosecone to keep from getting a fiberglass splinter every time I touched it and stacked the whole thing outside (it won't fit in the house) to get a picture:
View attachment 308797
Anyone got any good recommendations for shock cord? I was thinking the 25ft 7/16 onebadhawk harnesses. Thoughts?
Cade,,
25 ft,,, no way...
A big statement,, means everything,,
"A harness doesn't have to be crazy strong if it is long enough"
It's a harness,, not a shock cord,, if it is taking a "shock" load there is something fundamentally wrong with your set up,,
more likely the harness is too short, but could also be the separation charge is too energetic...
The harness must be long enough to allow the kinetic energy of separation to naturally dissipate
before the separating parts reach the end of the harness..
This is even more critical with the boosters harness then with the payload sections harness,,
if the payload sections harness is a bit too short you'll be "shocking" everything when the 2 separating parts reach the end of it..
If the boosters harness is too short your likely to have the nosecone separate from the payload section
when the booster and the payload section complete reach the end of that harness..
Deploying a main at apogee is IMHO an absolute anomaly from your flight plan and a fail on a cert flight..
Yes I know some will not be too happy that I said that,, but I think everything is supposed to work the way you intended it to work,,
or it failed...
Tell me a few things about the rocket..
It's a 6" airframe..
It's a 98mm motor mount ..
What is the projected weight ??
What is the distance from the top centering ring to the top edge of the booster ??
I've set up many of these,, I just want to be certain you don't get too crazy with the weight
before I make a suggestion for material and lengths...
Teddy